Bengali is recognised as an official language of which one of the following Indian states?

Introduction / Context:
India is a multilingual country where each state can adopt one or more official languages for administration and education. This question checks whether you know in which state Bengali, one of the major Indo Aryan languages, has official status beyond West Bengal. It is a typical general knowledge item for exams that test awareness of Indian states, languages and cultural distribution.

Given Data / Assumptions:

• Bengali is a major language of eastern India. • The options list different Indian states from various regions. • We need the state where Bengali is formally recognised as an official language.

Concept / Approach:
The main approach is to connect each state with its primary official languages. Bengali is obviously associated with West Bengal and Bangladesh, but the question asks about another Indian state among the given options. Tripura, a small north eastern state, has a significant Bengali speaking population and uses Bengali as one of its official languages, along with Kokborok and English. The other states in the list use different major languages such as Malayalam in Kerala or Hindi and regional languages in the central Indian states.

Step-by-Step Solution:
Step 1: Recall that Bengali is the dominant language of West Bengal and also widely spoken in the neighbouring state of Tripura. Step 2: Check Tripura. It has a mixed population of tribal communities and Bengali speakers, and Bengali is officially used in government and education. Step 3: Consider Kerala. Its official language is Malayalam, not Bengali. Step 4: Consider Uttarakhand and Chhattisgarh, where Hindi and regional languages are used officially rather than Bengali. Step 5: Since only Tripura is known for official Bengali status among the options, select Tripura.

Verification / Alternative check:
You can verify this through basic civics or atlas information, where state profiles list official languages. Tripura is usually described as a state where Bengali has a strong presence due to migration and historical ties with Bengal. None of the other listed states have Bengali as an official language at the state level, which confirms our reasoning.

Why Other Options Are Wrong:
Kerala: The official language is Malayalam, with English used for certain purposes. Uttarakhand: Hindi is the main official language, with some local languages in use. Chhattisgarh: Primarily uses Hindi and Chhattisgarhi dialects, not Bengali. Jharkhand: Uses Hindi and several regional tribal languages; Bengali is spoken by some people but is not the main official state language.

Common Pitfalls:
A common mistake is to assume that any eastern state might use Bengali officially without checking the demographic reality. Another error is to forget that many states recognise multiple languages but only some are official at the state level. To answer such questions accurately, connect each state with its core linguistic identity and check whether the language in question actually has official status.

Final Answer:
Bengali is recognised as an official language in the state of Tripura.